I was planning to upgrade my makeup collection with some premium products but I missed the latest Sephora sale. When are Sephora's big sales?

The major deals at Sephora usually happen at about the same time in most regions, though there could be little differences.

In broad strokes, here it is:

Spring Sale: April is the month most often seen.

Holiday Sale: The American Thanksgiving and Black Friday shopping seasons, or their international counterparts, are prime time for holiday sales.

Cyber Monday Sale: The sale that takes place on Cyber Monday is the day after Black Friday.

Beauty Insider Anniversary Sale: In July or August, Beauty Insider members only get access to the annual anniversary sale.

For the most up-to-date information, you can check the latest announcements on Sephora website or social media pages in your particular country.